65 lines
1.5 KiB
Go
65 lines
1.5 KiB
Go
// Copyright (c) 2014 Couchbase, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package numeric
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import (
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"testing"
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)
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// test that the float/sortable int operations work both ways
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// and that the corresponding integers sort the same as
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// the original floats would have
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func TestSortabledFloat64ToInt64(t *testing.T) {
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tests := []struct {
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input float64
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}{
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{
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input: -4640094584139352638,
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},
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{
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input: -167.42,
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},
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{
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input: -1.11,
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},
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{
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input: 0,
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},
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{
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input: 3.14,
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},
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{
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input: 167.42,
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},
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}
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var lastInt64 *int64
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for _, test := range tests {
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actual := Float64ToInt64(test.input)
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if lastInt64 != nil {
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// check that this float is greater than the last one
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if actual <= *lastInt64 {
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t.Errorf("expected greater than prev, this: %d, last %d", actual, *lastInt64)
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}
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}
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lastInt64 = &actual
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convertedBack := Int64ToFloat64(actual)
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// assert that we got back what we started with
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if convertedBack != test.input {
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t.Errorf("expected %f, got %f", test.input, convertedBack)
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}
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}
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}
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